New species and host plants of Anastrepha (Diptera: Tephritidae) primarily from Suriname and Par, Brazil.

Seventeen new species of Anastrepha, primarily from Suriname, French Guiana and Par, Brazil, are described and illustrated: A. aithogaster Norrbom from Brazil (Par), French Guiana, and Suriname; A. aliesae Norrbom from Suriname; A. brownsbergiensis Norrbom from Suriname; A. crassaculeus Norrbom Rodriguez Clavijo from Colombia (Magdalena, Norte de Santander) and Suriname; A. curvivenis Norrbom from Brazil (Amazonas), Ecuador (Zamora-Chinchipe), Peru (San Martn), and Suriname; A. fuscoalata Norrbom from Brazil (Par), French Guiana, and Suriname; A. gangadini Norrbom from Suriname; A. juxtalanceola Norrbom from Brazil (Par) and Suriname; A. microstrepha Norrbom from Brazil (Bahia) and Suriname; A. mitaraka Norrbom from French Guiana; A. neptis Norrbom from Brazil (Par), Ecuador (Orellana), Peru (Loreto) and Suriname; A. sobrina Norrbom from Brazil (Par), French Guiana, and Suriname; A. surinamensis Norrbom from Suriname; A. tenebrosa Norrbom from Brazil (Par) and Peru (Loreto); A. triangularis Norrbom from Suriname; A. wachiperi Norrbom from French Guiana and Peru (Cusco); and A. wittiensis Norrbom from Suriname. The following host plant records are reported: A. aithogaster from fruit of Parahancornia fasciculata (Poir.) Benoist (Apocynaceae); A. aliesae from fruit of Passiflora coccinea Aubl. and P. glandulosa Cav. (Passifloraceae); A. crassaculeus from fruit of an undetermined species of Pouteria (Sapotaceae); A. fuscoalata from fruit of Trymatococcus oligandrus (Benoist) Lanj. (Moraceae); A. sobrina from fruit of Eugenia lambertiana DC. (Myrtaceae); and A. wittiensis from fruit of Manilkara bidentata (A. DC.) A. Chev. (Sapotaceae).

Psyllotoxus griseocinctus Thomson, 1868 (Coleoptera: Cerambycidae): a potential pest of roses in Brazil revealed by its lifecycle and niche modeling.

We present the first formal record of the twig-girdler Psyllotoxus griseocinctus Thomson, 1868 (Cerambycidae: Lamiinae: Onciderini) attacking the rose, Rosa sp. (Rosaceae) in Southern Brazil. We provide photographs of the damage P. griseocinctus causes to the plant, as well as morphological descriptions of the immature stages and molecular diagnostic tools to identify this species. Additionally, we provide a modelled map with the known and potential distribution of P. griseocinctus and new host records for three plant species: the common walnut tree, Juglans regia L. (Juglandaceae); the cambucá tree, Plinia edulis (Vell.) Sobral (Myrtaceae); and the cherry tree, Prunus cf. serrulata Lindl. (Rosaceae).

Revision of the genus Euarestoides Benjamin (Diptera: Tephritidae).

Species of the genus Euarestoides Benjamin (Diptera: Tephritidae) are revised. Euarestoides comprises six species: E. abstersus (Loew) (Bahamas, eastern Canada and USA); E. acutangulus (Thomson) (Canada, Chile, Colombia, Cuba, Dominican Republic, Ecuador, Mexico, Peru, Puerto Rico, Trinidad Tobago, USA, and Venezuela); E. bimaculatus Savaris Norrbom, n. sp. (Peru); E. dreisbachi Foote (Guatemala, Mexico, Peru); E. pereirai Savaris Norrbom, n. sp. (Brazil); and E. rionegrensis Savaris Norrbom, n. sp. (Colombia). A key to the known species of the genus is provided, as well as descriptions, illustrations, distributions, notes on the biology and host plant data for each species.

Interaction between Tephritidae (Insecta, Diptera) and plants of the family Asteraceae: new host and distribution records for the state of Rio Grande do Sul, Brazil

Twenty species of Tephritidae (Diptera) are recorded in association with capitula of plants in the family Asteraceae. The Tephritidae genus Tetreuaresta is registered for Rio Grande do Sul for the first time. Five species of Tephritidae are newly recorded for Rio Grande do Sul, and new hosts are recorded for the following fly species: Dioxyna chilensis (Macquart), Plaumannimyia dolores (Hering), Plaumannimyia imitatrix (Hering), Plaumannimyia miseta (Hering), Plaumannimyia pallens Hering, Tomoplagia incompleta (Williston), Tomoplagia matzenbacheri Prado, Norrbom & Lewinsohn, Tomoplagia reimoseri Hendel, Xanthaciura biocellata (Thomson) and Xanthaciura chrysura (Thomson).

Opportunistic predation of fish by anomuran crabs (Crustacea, Anomura, Aeglidae) in rivers of southern Brazil / Predação oportunista de peixes por eglídeos (Crustacea, Anomura, Aeglidae) em rios do Sul do Brasil

The opportunistic predation on the fishes Astyanax fasciatus and Crenicichla sp. entangled in gill net by the aeglid crabs Aegla grisella and Aegla singularis was observed in rivers of southern Brazil. These events occurred in two rivers located at the National Forest of Passo Fundo, in Mato Castelhano municipality, Rio Grande do Sul State and Tangará municipality, Santa Catarina State. In both places the fish showed similar wound pattern, with eyes and fins being consumed first. However, predation of the whole body was also recorded, probably due to the high number of aeglid crabs feeding on the same individual. This record intended to contribute for understanding the natural diet of these crabs in freshwater environments.

A predação oportunista dos peixes Astyanax fasciatus e Crenicichla sp. emalhados em rede de espera pelos eglídeos Aegla grisella e Aegla singularis foi observada em rios do Sul do Brasil. Estes eventos ocorreram em dois rios na Floresta Nacional de Passo Fundo, município de Mato Castelhano, RS e no município de Tanguará, SC. Em ambos os locais os peixes apresentavam um padrão de mutilação semelhante, com olhos e nadadeiras sendo consumidos primeiramente. No entanto, a predação de todo o corpo também foi registrada, provavelmente em decorrência do elevado número de eglídeos se alimentando de um mesmo indivíduo. Esse registro visa contribuir para o entendimento da dieta natural dos eglídeos em ambientes de águas continentais.

Primeiro registro de Thaumastocoris peregrinus para o estado de Santa Catarina, e novas áreas de ocorrência para o Rio Grande do Sul, Brasil / First record of Thaumastocoris peregrinus for the state of Santa Catarina, and new areas of occurrence for the Rio Grande do Sul, Brazil

Thaumastocoris peregrinus é relatado pela primeira vez para o estado de Santa Catarina atacando plantas isoladas de Eucalyptus camaldulensis, Eucalyptus tereticornis e reflorestamentos de Eucaliptus grandis localizados no interior dos municípios de Chapecó, Cordilheira Alta, Xaxim e Xanxerê. No Rio Grande do sul, esse inseto já é encontrado em 10 localidades do sul do estado, e são registradas novas áreas de ocorrência nos municípios de Ernestina, Passo Fundo, Marau, Coxilha, Getúlio Vargas, Erechim, São Valentim, Erval Grande, Nonoai, Três Palmeiras, Ronda Alta, Pontão e Quatro Irmãos.

Thaumastocoris peregrinus is recorded for the first time in the state of Santa Catarina attacking isolated plants of Eucalyptus camaldulensis, Eucalyptus tereticornis and reforestation of Eucalyptus grandis located within the municipalities of Chapecó, Cordillera Alta, Xaxim and Xanxerê. In Rio Grande do Sul this insect is already found in 10 locations, and new areas of occurrence are recorded in the municipalities of Ernestina, Passo Fundo, Marau, Coxilha, Getúlio Vargas, Erechim, São Valentim, Erval Grande, Nonoai, Três Palmeiras, Ronda Alta, Pontão and Quatro Irmãos.